A man sought in the slaying of his ex-girlfriend was arrested in Juárez, El Paso police said Monday morning.

Zachary Adrian Zamora, 22, was arrested in the June 3 fatal shooting of Sylvia Guerrero, 20. He is accused of breaking into her West Side apartment in the 5400 block of Ridge Street at 6:53 a.m. June 3, then killing her, police said.

Zamora lived a half-mile away from the apartment, in the 200 block of Cuprite Drive, police said.

El Paso police Crimes Against Persons unit investigators, U.S. Customs and Border Protection and the U.S. Marshals Lone Star Fugitive Task Force were notified that Zamora had been arrested in Juárez, the news release said.

The U.S. Marshals Service was instrumental in Zamora’s arrest and return to the United States, police said in the news release.

Zamora was booked into the El Paso County Jail on one count of murder, two counts of aggravated assault with a deadly weapon (handgun) and several outstanding traffic warrants. His bonds totaled $3,000,291, police said.

On the morning of the shooting, police sealed off some streets in the West Side neighborhood to check vehicles leaving the area. A helicopter and a police dog also joined in the search, but the suspect managed to flee.